Boring tools on Scow Birdseye view of sec.3 Birdseye view of sec.2, looking westerly Stone posts on incline in Public Garden Pipe crossing at Tremont and (?) Avenue Pipe crossing at Tremont Pipe crossing at Tremont opposite Warrenton St. Interior of sec.4 near Boylston Street, refuge niches Interior of sec.4 arch of one track subway Pipe crossing at Tremont St. and Shawmut Ave. opp Warrenton Pipe changings at Dock Sq. Sec.10 Washington St. looking toward Haymarket Sq. Sec.6, corner of Tremont and Park Streets Pipe changes in Dock Square Relocation of 18" gas pipe in Dock Sq. Relocation of 18" gas pipe in Dock Sq. Depression in Tremont St., sec.6 looking southerly Depression in Tremont Street., sec.6, looking towards Scollay Square, Boston, Mass. Building conveyor on Tremont St. by Old Granary Burying Ground sec.6, Boston, Mass., July 17, 1896 Relocation of 30" water pipe Tremont St. opposite Warrenton Relocation of 30" water pipe in Tremont St. sec.4 Relocation of 30" water pipe in Tremont St. sec.4 Tremont St., sec.6, looking northerly, Boston, Mass. Looking from Hotel Pelham, sec. 2, Tremont Street, Boston, Mass., September 25, 1896 Sec.6, Tremont Street, looking northerly Interior of sec.4, looking northerly, near Boylston Street Lamps, public library Lamps, public library Junction of sess. 3 & 3.5 Work on sec.5, looking southerly Sec.4, incline at work on Shawmut Ave., looking northerly Tunnel for sewer siphon, Haymarket Square sec.10 Interior of sec.4, Tremont St., looking northerly Sec.8, Elm St. looking towards Hanover Interior sec.1, two track subway under Boylston Street mall Interior, sec.1 Pipe crossing, sec.2ng toward Hanover Sec.8, looking up Hanover St. from near Washington St. Some steelwork in Haymarket Square, sec.10, Boston, Mass. Steelwork in Haymarket Square, sec.10, looking southerly, Boston, Mass. Part of sec. 2 at the corner of Tremont and Boylston Streets Statue in Scollay Square, Boston, Mass., December 1, 1896 Easterly wall on sec.5 showing concrete A frame on wheels at Hanover St. near Washington Work on sec.5, looking northerly Supporting the front of hotel carter, Tremont St. Cracks in the Children's Mission Building, Tremont St. Lamps at the entrance of the subway Lamps at the entrance of the subway Supporting Hotel Carter, Tremont St.